9970998 has 8 divisors (see below), whose sum is σ = 19942008. Its totient is φ = 3323664.

The previous prime is 9970981. The next prime is 9971033. The reversal of 9970998 is 8990799.

It is a sphenic number, since it is the product of 3 distinct primes.

9970998 is an admirable number.

It is a super-2 number, since 2×9970998² = 198841602232008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9970998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830911 + ... + 830922.

It is an arithmetic number, because the mean of its divisors is an integer number (2492751).

Almost surely, 2^9970998 is an apocalyptic number.

9970998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9970998 is a wasteful number, since it uses less digits than its factorization.

9970998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661838.

The product of its (nonzero) digits is 367416, while the sum is 51.

The square root of 9970998 is about 3157.6887117004. The cubic root of 9970998 is about 215.2349909475.

The spelling of 9970998 in words is "nine million, nine hundred seventy thousand, nine hundred ninety-eight".